baber/WOPTO huggingface dataset:
Patent GB-1480974-A (GB)
Title: Apparatus for enabling disabled persons to move independently
IPC: A61H3/04
Filed: 1975-04-25
Abstract: 1480974 Invalid cycles S A L KARLSSON 25 April 1975 [30 April 1974] 17297/75 Heading B7E A cycle for use by invalids to exercise weak leg muscles comprises a frame having a lower substantially horizontal member 2 and an upper member 3 parallel to the member 2 supported on the member 2 by posts 10, 11 extending from the member 2, wheels 17, 18 supporting the frame, a steerable wheel 29 carried by a steering column 31 journalled to the frame, a drive wheel 25 mounted on the frame, pedals 26 connected to the wheel 25 whereby the latter may be rotated to propel the cycle, and a saddle 20 located over the drive wheel 25. The upper and lower frame members may be substantially U-shaped as shown, the upper member 3 being provided with padding 15, and a belt 16 for fastening an invalid in the cycle. The saddle 20 may be carried by a rod slidably mounted on a further vertical post 19 extending between the lower member 2 and a bracket 33 projecting from the upper member 3. The posts 10, 11, 19 and the column 31 may be telescopic so as to be height adjustable, and the wheels 25, 29 may be resiliently mounted. The post 19 may be replaced by a hollow square section column 19<SP>1</SP>, Fig. 3, within which run rollers 36, 37 carried by the rod mounting the saddle 20<SP>1</SP>, the rollers being movable to adjust the height of the saddle by means of a screw 39 within the column 19<SP>1</SP> driven by a rotary crank and gearing 40, 41 and engaging a nut 38 fixed to the saddle mounting rod.
Patent GB-569556-A (GB)
Title: Improvements in means for controlling the draught in steam generator furnaces of motor road vehicles
IPC: B60K3/00
Filed: 1942-12-07
Abstract: 569,556. Regulating draught. LEWIS, M. H. Dec. 7, 1942, No. 17378. [Class 51 (i)] A steam-driven road vehicle having a flashtype steam generator is provided with a fan for producing draught through the furnace of the generator driven by the vehicle engine through a variable-speed gear provided with means for varying the speed ratio in accordance with steam pressure. As shown in Fig. 1, the engine shaft 1 is provided with a belt pulley 2 which drives the fan 3 through a variable gear of known form comprising a pair of expanding pulleys. Steam pressure acts on a plunger 8 sliding in a cylinder 9 to operate linkwork 7 to vary the expanding pulleys and the speed of the fan. The plunger 8 also acts on a rod 15 to vary the position of the damper 13 in the fan outlet. A dog clutch may be provided between the engine and road wheels so that the engine may run while the vehicle is at rest. The damper 13 may be placed at the fan inlet or in the furnace gas outlet and may be placed between the fan and boiler so as to permit the blast to escape to the open air. In the case of a suction fan, the damper could admit air between the boiler and fan. A clutch may be provided between the engine and fan and the clutch may be disengaged upon a predetermined pressure of steam being exceeded. An electric motor may be used to drive the fan when starting up.
Patent GB-756670-A (GB)
Title: Means for starting internal combustion engines
IPC: C10L3/00
Filed: 1953-06-23
Abstract: A priming fuel for an internal combustion engine comprises diethyl ether and a flammable gas intimately mixed with the ether at a pressure above atmospheric pressure.  Flammable gases referred to are methane, ethane, ethylene, acetylene and hydrogen. The liquid component of the fuel preferably contains 60-95 per cent diethyl ether, 1-5 per cent methyl alcohol, 5-30 per cent of a propylene oxide polymer such as polypropylene glycol octyl ether acetate, 0.05-0.5 per cent hydroquinone and a dye such as red coal tar dye. The fuel may be contained in a bulb sealed under pressure, from which it may be injected into the engine.
Patent GB-660950-A (GB)
Title: Improvements in or relating to apparatus for forging metal
IPC: B21H1/22
Filed: 1949-07-01
Abstract: 660,950. Forging- machines; die-rolling. NATIONAL MACHINERY CO. July 1, 1949 [Aug. 6, 1948], No. 17452/49. Class 83 (iv). Forging apparatus comprises a slide reciprocable in a frame toward and away from a die bed and operatively associated with a pair of die rolls mounted on said frame. In one embodiment, Figs. 1 and 6, the press head 16 is driven from a continuously rotating shaft 7, through a one revolution clutch 9 and crankshaft 8, and the rolls R1, R2, coupled by gearwheels 44 and having relieved portions 49 to permit insertion of the blank B, are driven from the crank-shaft 8 by sprockets S1, S2, and chain C. The operation is initiated by a pedal 270 which closes an electric switch to cause the clutch 9 to be engaged and a brake 241 to be disengaged. After one revolution of the shaft 8 a cam thereon breaks a switch and causes the clutch to be released and the brake to be applied to prevent over-run. In a modification, Fig. 7, the coupled rolls are operated by links 76, 77, connected to the press head, and which may operate through step-up gearing, Fig. 14 (not shown), to provide adequate rotation of the rolls. In a further modification, Fig. 18, the rolls are driven by a toothed quadrant 151 connected by an arm 160 to the press head, and a horizontal platform 171 receives the blank B2 after it has been rolled. The rolls may have two pass grooves.
Patent GB-883612-A (GB)
Title: Equipment for removing and mounting motor vehicle tyres
IPC: B60C25/132
Filed: 1960-05-18
Abstract: 883,612. Tyre removing apparatus. BEISSBARTH, O., [trading as BEISSBARTH MASCHINENBAU, OSMOND]. May 18, 1960 [March 22, 1960], No. 17492/60. Class 144(1). A bead - breaking and tyre-removing apparatus comprises a frame into which the tyred wheel is rolled to position a portion thereof between a fixed but adjustable rimengaging pad 5 and a tyre - engaging pad 4 which is operable by pneumatic ram 6 to force the adjacent tyre bead away from its associated rim flange. The operation is repeated at points around the tyre. Subsequently the wheel is mounted horizontally on top of the frame where its rim edge is gripped by claws 1 which are radially adjustable by means of a disc 2 rotatable by a tangential link 3. The link 3 and pad 4 are connected to opposite ends of a lever 7 which is pivoted intermediate its ends to the frame and is acted upon by the same ram 6. The ram may be positioned as shown or may act directly on the pad 4.
Patent GB-678772-A (GB)
Title: Improvements in or relating to multiple unit d.c. power supply systems suitable for use for modulated radio transmitters and similar apparatus
Inventor: COOPER VICTOR JAMES
IPC: H04B1/04
Filed: 1950-07-12
Abstract: 678,772. Automatic regulation; rectifying. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 10, 1951 [July 12, 1950], No. 17500/50. Classes 38 (ii) and 38 (iv). Where two or more D.C. power supply units are fed through a common impedance from a source, a second common impedance is included in a common D.C. return path for the units to compensate, to a desired degree, for voltage variations due to the first common impedance. Rectifiers R1, R2 supplied from a common A.C. source M, supply loads RFD, HRF respectively. Variations in the voltage supplied to load RFD, due to variations of load HRF causing changes in volt-drop across a common impedance X, are compensated by introducing the volt-drop across a resistance Y in series with the supply to load RFD. By choice of resistance Y the voltage supply to load RFD which may be the H.T. load of the driver stage of a television transmitter is thus exactly over-, or under-compensated for variations of load HRF which may be the H.T. load of a modulated power amplifier stage of the transmitter. Common impedance X may be due to a voltage regulator associated with the A.C. source and resistance Y may be the lowest frequency section of a rectifier constant impedance filter network. A polyphase supply and more than two D.C. supplies are referred to.
Patent GB-1465558-A (GB)
Title: Production of pyrimidine derivatives
IPC: C07D239/49
Filed: 1974-04-22
Abstract: 1465558 2-Amino-4,6-dihydroxy-5-(di- or trialkoxy)benzylpyrimidines SOC D'ETUDES CHIMIQUES 22 April 1974 [26 April 1973] 17552/74 Heading C2C 2 - Amino - 4,6 - dihydroxy - 5 - (di- or trialkoxy)-benzyl-pyrimidines of the formula in which n is 2 or 3 and R is C 1 -C 4  alkyl are prepared by condensing an alkyl(di- or trialkoxy)- benzylmalonate of the formula with guanidine.
Patent GB-188020-A (GB)
Title: Improvements in "headlight lens"
IPC: F21V5/00
Filed: 1921-06-28
Abstract: 188,020. Graham, J. M. June 28, 1921. Lenses and lens holders.-A lens or front glass for vehicle head-lights is provided with a central portion 7, the inner surface of which is at an uniform angle to the front face of the lens and has thereon vertical prismatic ridges. Projecting backwardly from, and inclined to, the part 7 is a prismatically ridged part 8 which is in the form of a half frustrum of a cone or is semi-cylindrical and which extends beyond the filament of the lamp bulb 3. The annular space between the part 7 and the border 6 is divided horizontally, the lower surface of the lower portion 9 being parallel to the outer face of the lens and provided with vertical prismatic ridges. Similar ridges are provided on the line 10, the horns of which terminate on an horizontal diameter. The portion 11 between the lens 10 and parts 7, 9 is formed as a flattened prismatic surface, the inner surface of which is inclined backward. As the outer angles of the prismatic ridges are not less than twice the critical angle of the medium of which the lens is made and is preferably 90‹, the light striking the ridges of the various parts is reflected back into the upper part of the reflector 5, whence it is transmitted to the translucent part 11 which projects the light downwardly on the road. The outer and inner surfaces are provided with roughtened borders 6, where they fit in the frame 4.
Patent GB-570143-A (GB)
Title: Improvements in or relating to magnetic regulating mechanism for clockwork mechanism
IPC: G04C5/00
Filed: 1942-12-10
Abstract: 570,143. Clockwork mechanism. STRAUMANN, R. Dec. 10, 1942, No. 17591. Convention date, Dec. 15, 1941. [Class 139] [Also in Group XXVI] Means for regulating clockwork mechanism comprises a flanged member d<1> driven by the clockwork to be regulated and carrying on each flange two rings of inwardly projecting pins e, f of magnetic material. A spring b secured at one end in a fixed support a has at its other end a magnet c which reacts magnetically with the pins e, to maintain the spring b in vibration and to control the speed of the member d<1>. In a modification, the member d<1> is formed as a magnet or is magnetized by a stationary magnet, the magnet c being replaced by a bar of soft iron.
Patent GB-1379178-A (GB)
Title: Valves
IPC: F16K5/20
Filed: 1972-04-17
Abstract: 1379178 Valves R E SELF 17 April 1972 [27 May 1971] 17613/72 Heading F2V A valve comprises a housing 11 with inlet 12 and outlet 13 ports accommodating a flow tube 25 fixed to a rotatable shaft 26 and arranged to provide an unimpeded flow path when coaxially aligned with the ports and a plug element 16 eccentrically mounted with respect to the shaft axis by spaced arms 21, 22 disposed on either side of the flow tube such that rotation of the shaft brings the plug element into contact with a seating element 14. The plug is provided with lugs 18, 19 which latch into lugs 20 to ensure a good seal. The arms are flexible and the plug element may be partly supported by a roller 35 to facilitate seating of the plug and to secure a good seal.
Patent GB-297515-A (GB)
Title: Improvements in and relating to drying apparatus specially applicable for laundry and dry cleaning purposes
IPC: D06F58/10
Filed: 1927-07-02
Abstract: 297,515. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). July 2, 1927. Small chambers.-In a drying apparatus for curtains, blankets, or the like, of the kind comprising a chamber having air supply and discharge openings and fitted with withdrawable stretcher frames, the latter are so constructed that as they are moved out of the chamber they operate dampers to cut off the passage of air, while when they reach the fully withdrawn position they close the opening in the chamber and open the dampers to restart the air circulation. As shown, the chamber is supplied with hot air by a motor-driven fan 2 having, in the inlet 7, steam heating coils 8 and, in the outlet 9, a deflector 10 to divide the air stream, both currents passing downwardly towards the outlet 11 in the rear wall 22 of the chamber. The stretching frames 12!, 13, 14 are arranged in groups of three and are formed with front and rear walls 19, 20 which close the chamber when the frames are inside and outside respectively. The wall 20 is provided in its lower part with apertures 21 through which the air passes to the outlet 11, these apertures co-operating with a verticallysliding damper 23 carried by a chain 25 which supports a weight 26 and passes over a pulley 27 on the frame 12 to a point 28, Fig. 7, where it is anchored. During the first part of the withdrawal of a frame 12, the weight 26 causes the slide 23 to drop, thus closing the apertures 21, but after the pulley 27 passes the point 28 the chain 25 is bent back over a bridge 30 so that, when the frame is completely withdrawn, the slide 23 has been raised into the open position. A similar closing and opening movement of a damper 31, Fig. 5, in the fan outlet is effected by the provision, at the ends of the each frame 12, of inclined slots 49 in which engages a pin 48 on the arm 46 of a bell-crank 45, the latter actuating a rod 35 connected to the weighted arm 33 of the damper 31. Extending between the slots 49 is an angle bar 50 adapted to engage over the pin 48 and maintain the damper 31 closed until the frame 12 approaches the fully withdrawn position. The rod 35 has a pin-and-slot connection 36, 37 with a lever 38 fast on a shaft 39 the latter also carrying a number of members 40 corresponding to the number of frames 12; slots in the members 40 are interrupted at 42 to allow the pins 43 on the bell-crank 45 of the stationary frames to leave the slots when the shaft 39 is rotated by the moving frame. Specification 292,359 is referred to.
Patent GB-128826-A (GB)
Title: Improvements in and relating to Filling-feelers for Looms.
Inventor: JACKSON SIMEON SCHOON
IPC: D03D51/34
Filed: 1918-10-29
Abstract: 128,826. Jackson, S. S. Oct. 29, 1918. Weft-feeler arrangements.-In a weft-feeler arrangement, a primary feeler member is adapted to be moved by the weft at least during the earlier stages of a feeling action; a secondary feeler member is moved by the weft through a distance variable with respect to that through which the primary member is moved, and a controller for the devices for initiating weft-replenishment or stopping the loom is governed by a controller rest actuated through the movement of the primary feeler member and controlled by the secondary feeler member. As shown, primary and secondary feeler members 1, 2 are slidably supported in a stand, and are normally held rearwards towards the lay by springs 31, 41. A controller rest comprising two adjustably connected parts 7, 8 is pivoted on a pin 9 projecting from the part 10 of the member 1, and lies over the member 2 with a projection 71 on the rest normally in contact with the upper surface of the member 2 to the rear of an opening 5 therein. The rear end of the member 1 normally projects slightly to the rear of the corresponding end of the member 2, so that the members make simultaneous contact with the sloping end of a partly used cop, as shown in Fig. 7. When a full bobbin is in the shuttle, its cylindrical surface forces the member 1 far enough forwards to cause a projection 14 on the rest to rise upon a governor bar 15 on the stand so that the rest and the controller 13, which has a cranked end 11 engaging a slot in the part 7, are supported and no indication for change is made. When the sloping part of the cop acts on the members, these move together and the projection 71 remains on the member 2. Finally, the denuded bobbin acts on the member 1 and the residue of weft on the member 2, and, when the residue is diminished to the predetermined amount, the member 1 is moved sufficiently relatively to the member 2 to cause the projection 71 to drop through the opening 5, so that the rest and the end 11 of the controller fall, and a shaft 44, to which the controller is secured, is allowed to turn by gravity assisted by a spring. A lever 443 on this shaft has a pin 444 engaging a slot 445 in a catch 21 secured to a change-initiating lever, so that, when the shaft is turned, the catch falls and a shoulder 24<a>, or other part thereon, is engaged by a shoulder 25 on the weft hammer to cause the change to take place. In modifications, the controller-rest governors consist of adjustable fingers secured to the stand below the level of the member 2 and adapted to co-operate with projecticns on the controller rests. Specification 23372/08 is referred to.
Patent GB-551752-A (GB)
Title: Improvements in dynamo-electric machinery
IPC: H02P9/00
Filed: 1941-08-20
Abstract: 551,752. Driving dynamos. ENGLISH ELECTRIC CO.; Ltd., and JOWETT, W. G. Aug. 20, 1941. No. 17664/42. Divided out of 552,736. [class 35] [Also in Group XXVI] An electric generating plant comprises a directcurrent generator having an inherent volt-ampere characteristic such that over a working range the power is nearly constant, an internal combustion engine driving the generator, and a speed governor for the engine having means, such as an adjustable spring-loaded stop 4 coacting with a lever 2, which in response to an increase of the engine load over a certain value (during the warming up period) varies the governor loading progressively increases the fuel supply with a considerable speed reduction. The stop in its final position prevents any further increase in fuel supply.
Patent GB-356280-A (GB)
Title: An improved method of, and means for, jointing pipes to header walls or plates
IPC: F22G3/00
Filed: 1930-06-06
Abstract: 356,280. Jointing pipes to headers &c. SUPERHEATER CO., Ltd., Bush House, Aldwych, London.-(Superheater Co. ; 17, East 42nd Street, New York, U.S.A.) June 6, 1930, No. 17674. [Class 99 (i).] The end 5, Fig. 1, of a pipe 6 is jointed to a hole 2 in a header wall or plate 1 by enlarging the said end to a conical formation and pressing the conical surface thereof into contact with a like surface 3 at the outer end of the hole 2, and then welding or fusing together at 13 the outer edges of abutting annular lips 7, 4 on the pipe and header respectively. The lip 4 surrounds the opening 2 and is of wedge-shaped formation, and the lip 7, which is also wedge-shaped, is formed by machining the back of the pipe enlargement. The latter also accommodates one end of an annular ring 8, the other end bearing against clamps 9 which are forced towards the header to bring the pipe and header into contact by nuts 10 engaging studs 11 screwed into the header. Washers 12 of the shape shown are disposed between the nuts 10 and clamps 9. In modifications, the end of the pipe and the hole in the header are of square formation instead of conical, and the ring 8 bears upon a separate abutment on the pipe instead of on the enlarged end thereof. In the case of a header made of material which is not readily welded to the pipe 6 a bushing 14, Fig. 4, to receive the pipe is first screwed or otherwise secured in the header. Fig. 6 shows a further modification in which the clamping means are dispensed with, the pipe end being rolled or expanded into the plate and beaded over. In the form shown in Fig. 7, thimbles 14a are secured to the header to receive the pipes, and the end of the latter are enlarged by turning back or by securing ferrules thereto. The ends of the turned-back portion 17 of the pipe and the thimble, which are welded together, are chamfered as shown. The invention is particularly applicable to steam superheaters and reheaters.
Patent GB-1433386-A (GB)
Title: Control system for a fuel injection system for compression ignition engines
IPC: G06G7/64
Filed: 1973-04-12
Abstract: 1433386 Automatic control of fuel injection in IC engines SOC DES PROCEDES MODERNES D'INJECTION SOPROMI 12 April 1973 [12 April 1972] 17713/73 Heading G3N The quantity of fuel injected in an internal combustion engine is determined from the measured engine speed and the desired engine speed by deriving voltages corresponding to the respective points on the full load and steady state characteristic curves and selecting the lower of these desired voltages to give the required quantity of fuel. In the arrangement shown a transducer 1 produces pulses whose frequency represents engine speed and these are used to operate monostable circuits 2 and 5. The standardized pulses from circuit 2 pass through converter 3 which provides a voltage proportional to engine speed. This voltage is applied to a function generator 4 which produces an output voltage corresponding to the full load characteristic curve CPC Fig. 1. The monostable circuit 5 produces pulses having a duration representing the desired speed input from 9. These pulses are combined with the engine speed pulses at 6 to produce a difference signal To-Ta which is used to determine the time during which capacitor 7 is charged from generator 8. The end of the engine speed pulses produces from monostable 11 a pulse which operates circuit 12 to produce an output voltage which corresponds to the quantity of fuel according to steady state curve CS Fig. 1. The quantity signals are passed to discriminating circuit 13 which allows the lower value signal to pass to a storage circuit 14. The signals D and # are provided by timing marks on the engine and when combined provide an authorization signal from bi-stable 21 at the instant when injection is required in each cylinder and lasting for the maximum time for which injection can  occur. The authorization signal causes the stored signal to be read-out of 14 to define the length of the injection pulse Tinj produced by circuit 22.
Patent GB-600282-A (GB)
Title: Improvements in or relating to safety devices for electric immersion heaters
IPC: H05B1/02
Filed: 1945-07-11
Abstract: 600,282. Temperature-responsive actuating-elements. BEST PRODUCTS, Ltd., and BEST, F. L. July 11, 1945, No. 17752. [Class 64(ii)] [Also in Group XXXVII] In the safety device, for an immersion heater, of the ratchet-and-pawl construction, as described in Specification 528,682, [Group XXXVII], the part 26 containing the fusible metal is small to reduce heat capacity, has thin walls to increase thermal conductivity, and is preferably of high conductivity, e.g. copper, and joined to a tube 19 carrying the ratchet and pawl by a tube 20 having thin walls to reduce heat loss by conduction along it.
Patent GB-819765-A (GB)
Title: Gas meters
Inventor: SMITH CHARLES HENRY
IPC: G01F3/22
Filed: 1957-06-04
Abstract: 819,765. Gas meters. SOUTH EASTERN GAS BOARD. May 27,1958 [June 4, 1957], No. 17764/57. Class 54. A dry gas meter has a valve plate 11 dividing the meter into a valve chamber 12 and a lower chamber, the lower chamber being divided into two diaphragm chambers 15, 16 by spaced walls 13, 14 which form a central chamber 17 connected to the inlet or outlet ports of the valves and to the inlet or outlet connections of the meter. The chambers 12 and 17 may be connected to separate inlet and outlet connections or a coaxial fitting provided on the top or bottom of the meter may have its inner passage connected to the central chamber 17 by a pipe passing through the valve chamber or to the valve chamber by a pipe 41 passing through the central chamber and preferably ending flush with the top surface of the valve plate. With one of the valves in position to move the diaphragm 18 to the left, inlet gas flows from the valve chamber through a port 37 and a duct 38 and outlet gas from the other side of the diaphragm flows through ports 35 and 36 and round the outside of the duct 38 to the central chamber 17. The flexible parts 19 of the diaphragms are supported in their extreme positions by perforated supports 23, 24 as described in Specification 798,035.